Top Rated Hvac Contractors Serving Novato, CA

If you really care about choosing a quality hvac contractor, we’re here for you. Here’s your access to the best hvac contractors serving Novato including 94947, 94945, 94949, 94948 and 94998. These heating and air conditioning experts provide cooling system installations and ventilation systems, and they also work on HVAC repairs, ductless heating and cooling systems and mini splits. For 22 years we’ve conducted the most accurate ratings and deepest research of local contractors, so you’ll be confident in choosing.

Last Updated Feb 18, 2025
148,521 people sourced companies in Heating & Air Conditioning
16,331 Verified Heating & Air Conditioning Customers Surveyed

16,331

148,521

1 of 4

Enviro Heating & Air Conditioning, Inc.

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Enviro Heating & Air Conditioning, Inc. installs, repairs, and maintains all types of HVAC equipment for residential and commercial clients in Sonoma,...

Main Services

Heating & Air Conditioning

Air Duct Cleaning

Additional Services

HVAC Repair, Installation & Maintenance, Sheet Metal Fabrication

Coverage Areas

Sonoma County, Marin County, Napa County

Emergency 24/7

Residential & Commercial

Appointments Available

Live Phone Call Answers

Diamond Certified Video Profile

Heating & Air Conditioning - Enviro Heating & Air Conditioning, Inc. - Sonoma County

Diamond Certified Company Report

Chris Street, President

Expert Contributions

179
Rating Surveys

8
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(415) 213-4652

Hours OPEN NOW

License:

928565

2 of 4

Kelly Plumbing & Heating, Inc.

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Kelly Plumbing & Heating, Inc. installs the latest technology in forced air furnaces, heat pumps and air conditioning systems for residents of Marin C...

Main Services

Heating & Air Conditioning

Additional Services

Central Heat Pump Systems, Forced Air Heating & Air Conditioning, Radiant Heat Boilers & Installations, Tankless & High Efficiency Water Heaters, Attic Fans, Air Duct Cleaning, Dryer Vent Cleaning, Duct Insulation, Heat Pump Water Heaters

Brands

Trane, Triangle Tube, Bradford White, Rinnai, Honeywell, Mitsubishi

Coverage Areas

Marin County, Sonoma County

Family Owned

Residential Only

Appointments Available

Live Phone Call Answers

Diamond Certified Video Profile

Heating & Air Conditioning - Kelly Plumbing & Heating, Inc. - Marin County

Diamond Certified Company Report

Owners Jim and Anna Kelly are dedicated to customer service.

Expert Contributions

379
Rating Surveys

4
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(415) 935-0965

861 Sweetser Avenue, Novato, CA 94945

Hours OPEN NOW

License:

688049

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Ongaro & Sons

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Ongaro & Sons provides a complete range of plumbing services for residential and commercial clients in Sonoma and Marin Counties. In addition to servi...

Main Services

Electrical Contractor

Plumbing

Heating & Air Conditioning

Additional Services

Plumbing, Heating & Cooling Service, Electrical Service, Repair & Installation, Indoor Air Quality, Water Heater Repair & Replacement, Sewer Cleaning & Replacement

Brands

American Standard, Trane, Mitsubishi

Coverage Areas

Sonoma County, Marin County

Family Owned

Established in 1932

Residential & Commercial

Mobile Services Available

Diamond Certified Video Profile

Electrical Contractor - Ongaro & Sons - Sonoma County

Diamond Certified Company Report

Ernie Ongaro, Co-owner

Expert Contributions

278
Rating Surveys

9
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(707) 652-9891

Hours OPEN NOW

License:

215233

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Hassler Heating & Air Conditioning, LLC

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Hassler offers full HVAC services including maintenance, repairs, water heaters, ductless, full system replacements, and heat pump conversions. Starti...

Main Services

Heating & Air Conditioning

Home Energy Auditor

Additional Services

Central Ducted Heat Pump, Ductless Mini-Split Heat Pump, Water Heater (Standard, Tankless, Heat Pump, Electric Resistance), Furnace, and A/C Installations and Repairs, Home Energy Assessments and Home Energy Score (HES) Assessments, Energy Upgrade Measures (Building Shell)

Brands

Bosch, Carrier, Mitsubishi, Navien, Rheem Water Heaters

Coverage Areas

Alameda County, Contra Costa County, Marin County

Family Owned

Established in 1999

Residential & Commercial

Financing Available

Diamond Certified Video Profile

Diamond Certified Company Report

Tim Hassler, General Manager

Expert Contributions

288
Rating Surveys

30
Photos
& Videos

5
Researched Articles

Rated Highest in Quality and Helpful Expertise PERFORMANCE GUARANTEED

Quick Connect
(510) 400-5759

Hours OPEN NOW

License:

770180

Learn how to choose a Heating & Air Conditioning and more…

Diamond Certified Hvac Contractors Serve These Novato ZIP Codes

94947, 94945, 94949, 94948, 94998

Diamond Certified Hvac Contractors In Novato

Diamond Certified hvac contractors serving Novato are rated an average of 4.6 out of 5 stars based on 2191 reviews of 77 rated hvac contractors.
Diamond Certified hvac contractors in Novato Avg. Star Rating.

We make you an expert at choosing a high-quality HVAC contractor in the Novato area.

For those who love quality local HVAC contractors.

Within our Diamond Certified Resource:

You choose from only top rated Diamond Certified HVAC contractors that serve our Novato area.
You see each contractor’s deeply researched report from our research.
You get guidance throughout every phase of hiring a local HVAC contractor with our Diamond Certified Resource Heating, Cooling and Air Quality Guide.
You get expert guidance from top rated HVAC contractors who are Expert Contributors.
You’re backed by our Performance Guarantee.

You’ll love and refer your friends and family to your new Novato area Diamond Certified HVAC contractor. They provide expert services, including HVAC maintenance plans, HVAC upgrades, air filtration, ventilation systems, energy-efficient HVAC work, and more.

To qualify for Diamond Certified, each contractor must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified HVAC contractors that serve Novato residents include Kelly Plumbing & Heating, Inc., Ongaro & Sons, and Enviro Heating & Air Conditioning, Inc..

Every Diamond Certified HVAC contractor that serves residents in 94947, 94945, 94949, 94948 and 94998 performs various specialties, including HVAC troubleshooting, HVAC repairs, cooling system installations, heating system installations, and HVAC replacement.

How to Choose a Quality Novato Hvac Contractor for Your Family

Click the name of the contractor to get to their Diamond Certified Company Report page.
Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
Read their verbatim client survey responses and our researched articles.
Get helpful heating and air conditioning tips if they are a Diamond Certified Expert Contributor.
Call or email them to schedule an appointment.

Become a Diamond Certified Preferred Member and Join Your Novato Neighbors

If you love quality local contractors, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Novato was founded in 1856, and today, your 59,919 neighbors enjoy reading, dog walking, craft workshops, astronomy and quad biking. Novatans use Diamond Certified HVAC contractors for HVAC upgrades, ductless heating and cooling systems, HVAC maintenance plans, HVAC repairs, AC tune ups, and more.

Frequently Asked Questions for Heating & Air Conditioning in Novato, CA

Q: What are clients of Diamond Certified hvac contractors saying about contractors in Novato, CA?

A: Verified Burkell Plumbing, Inc. Customer, one of 396
"They are quality. His straightforwardness" -Danniel K.
All Survey Responses for Burkell Plumbing, Inc.
Verified Ongaro & Sons Customer, one of 278
"They seem to be competent and reliable. They knew what they were doing." -Denise M.
All Survey Responses for Ongaro & Sons
Verified Enviro Heating & Air Conditioning, Inc. Customer, one of 179
"A little expensive but totally worth it, they are professional and go out of their way to help you. Their professionalism" -Sharon K.
All Survey Responses for Enviro Heating & Air Conditioning, Inc.
Verified Kelly Plumbing & Heating, Inc. Customer, one of 350
"They are very reliable and honest. I feel very confident with their work. The people they send are very pleasant people. They are very reliable." -David E.
All Survey Responses for Kelly Plumbing & Heating, Inc.

Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with Novato residents?

A: Diamond Certified hvac contractors use top-quality brands like Rheem, Armstrong Air, Ruud, Mitsubishi Electric and Heil.

Q: What types of mini splits do hvac contractors offer?

A: HVAC contractors offer a wide range of indoor air quality services, including air filtration, air purification, and dehumidification. Air filtration removes dust, dander, and other particulates from the air, while air purification systems eliminate odors, smoke, and other contaminants from the air. Dehumidification helps reduce humidity levels in the home, which can improve comfort and reduce the risk of mold growth. Additionally, many HVAC contractors offer other air quality services, such as UV light air purification, humidity control, and air quality monitoring.

Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get cooling system installations in Novato?

A: Yes, Diamond Certified hvac contractors can work with Carrier products and similar items to provide cooling system installations in Novato.

Q: What did people search for when they wanted to find the best quality hvac contractors in Novato?

A: Indoor Air Quality
Mini Splits
Hvac Installation
Heating
Commercial Air Conditioning

Top Rated Hvac Contractors Serving Novato, CA

Enviro Heating & Air Conditioning, Inc.

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Main Services

Additional Services

Coverage Areas

Kelly Plumbing & Heating, Inc.

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Main Services

Additional Services

Brands

Coverage Areas

Ongaro & Sons

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Main Services

Additional Services

Brands

Coverage Areas

Hassler Heating & Air Conditioning, LLC

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Main Services

Additional Services

Brands

Coverage Areas

We make you an expert at choosing a high-quality HVAC contractor in the Novato area.

For those who love quality local HVAC contractors.

Within our Diamond Certified Resource:

Your Diamond Certified Resource. We make you an expert at choosing.

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